Patent GB-420833-A (GB)
Title: Improvements in or relating to fastener or like assorting and distributing mechanism
IPC: A43D71/00
Filed: 1933-06-09
Abstract: 420,833. Nailing. BRITISH UNITED SHOE MACHINERY CO., Ltd., and ROBERTS, W. T. B., Belgrave Road, Leicester. June 9, 1933, No. 16531. [Class 89 (iii)] In a fastener-assorting and distributing mechanism for heel-attaching and like machines adapted to employ nails of various sizes, the entire fastener hopper, comprising a rotatable part and a normally-stationary part, is movable to and from an operative position in which a raceway carried by the hopper is co-operative with a rotary nail-receiving member, and the stationary part with the raceway can be rotated to dump fasteners from the hopper and raceway, and can also be swung away from the rotatable part to facilitate inspection of the latter. The raceway is readily removable and the nailreceiving recesses in the said receiver are readily adjustable, all with a view to expediting changing from one type of fastener to another. The mechanism is described as applied to the mechanism disclosed in Specification 23356 /04, [Class 89], and is suitable for application to the heel-attaching machine described in Specification 348,071. A bracket 1, referred to as 2 in the first-mentioned Specification, is extended to carry a horizontal spindle 3 on which a bracket 5 is mounted to swing in a vertical plane. A shaft 11 mounted in the bracket 5 is rotatable by a handwheel 13, and the part 15 of the hopper is rotatable on the shaft 11 by a belt drive from a continuously driven shaft of the machine. The part 15 is provided with lifting shelves for the fasteners. An arm 29 of the bracket 5 carries a vertical pivot 31 on which is mounted an L-bracket 35 in which is mounted a shaft 37 extending from the fixed part 39 of the hopper. A block 43 in the part 39 carries the usual spill-pan 45 and is engaged by a threaded rod 53 for normally holding the two parts of the hopper substantially in contact. A groove 49 in the block is engaged by a tongue 51 on the shaft 11, whereby the part 39 may be rotated by the handwheel 13. An opening in the part 39 is closed by a cover 61. When the part 39 is rotated through an angle of 180‹, carrying with it the raceway 17, the cover falls open, and the fasteners contained in the hopper and raceway fall out into a shoot 63. The hopper parts are shaped to assist the fasteners in running out. The shoot 63 discharges into a tube 105, 107, beneath which different receptacles can be selectively positioned to receive the dumped fasteners. The part 39 is locked in dumping position by a recess 67 and a spring plunger 65 releasable by a hand lever 73. The raceway 17 is supported at the entrance to the hopper in a guide block, and at its inner end is locked to the block 43 by a plunger 77, which can be released by a hand lever 81 to allow the raceway to be removed for replacement by one adapted for different fasteners. The lower end of the raceway engages, by a tooth 92 and recess 94 permitting disengagement thereof, with a bearing 91 for the shaft of a rotary fastener-receiver 143 similar to that described in Specification 33356/04. For disengaging the raceway and bearing, to allow the hopper part 39 to be rotated as described, the bracket 5 is swung about its pivot 3 by means of a hand lever 103, cam groove 97, and roll 95 on the bracket. The part 39 can then be rotated by the handwheel 13, and may be swung away from the part 15 after the rod 53 has been unscrewed. Actuation of the lever 103 also acts, through a cam 139 and lever 137, to allow a spring plunger 131 to press a catch 129 to a position where it closes the end of the raceway, to prevent escape of fasteners. The normal elevation of the latch is adjustable by screws 141. A screw 130 carried by the latch, Fig. 7, and a cam plate 132 on the bearing 91 so co-operate that the latch cannot drag out a fastener already positioned in the receiver 143. A raceway cover 147 is pivoted at 151 to a slide 153 which is adjustable vertically by means of an eccentric and a knurled head 161. Thus, the height of the cover above the raceway is adjustable, and it can be turned up to expose both the raceway and an opening in the hopper giving access to the inner part of the raceway. The cover is held closed by a spring plunger. A clearer 171 is actuated by cams on the rotary part of the hopper. To obviate the replacement of the receiver 143 when a change of fasteners is made, the fastener-receiving recesses therein are cut right through its thickness, and are closed at the back by projections 185 on a disc 183 mounted in front of the receiver. The disc is adjustable towards the receiver, to vary the effective depth of the said recesses, by means of a screwed rod 189 and a screwed sleeve 199 with a knurled head. Specifications 24545 /06 and 17708/08, [both in Claas 17], also are referred to.